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Category: JN0-643 (v.4)

Exam JN0-643: Juniper Networks Certified Internet Professional (JNCIP-ENT) (November 5th, 2014)

why are the OSPF routers stuck in Init state?

— Exhibit —
Mar 16 17:54:51.930726 OSPF periodic xmit from 172.14.10.1 to 224.0.0.5 (IFL 69 area 0.0.0.0)
Mar 16 17:54:55.566920 ospf_trigger_build_telink_lsas : No peer found
Mar 16 17:54:56.152585 ospf_trigger_build_telink_lsas : No peer found
Mar 16 17:54:56.152721 ospf_set_lsdb_statE. Router LSA 192.168.2.1 adv-rtr 192.168.2.1 state
QUIET->GEN_PENDING
Mar 16 17:54:56.153271 OSPF trigger router LSA 0x156d0f0 build for area 0.0.0.0 lsa-id
192.168.2.1
Mar 16 17:54:56.157854 ospf_set_lsdb_statE. Router LSA 192.168.2.1 adv-rtr 192.168.2.1 state
GEN_PENDING->QUIET
Mar 16 17:54:56.157971 OSPF built router LSA, area 0.0.0.0, link count 2
Mar 16 17:54:56.158300 OSPF sent Hello 172.14.10.1 -> 224.0.0.5 (ge-0/0/1.0 IFL 69 area
0.0.0.0)
Mar 16 17:54:56.158380 Version 2, length 44, ID 192.168.2.1, area 0.0.0.0
Mar 16 17:54:56.158435 mask 255.255.255.0, hello_ivl 10, opts 0x2, prio 128
Mar 16 17:54:56.158485 dead_ivl 40, DR 172.14.10.1, BDR 0.0.0.0
Mar 16 17:54:56.158949 OSPF DR is 192.168.2.1, BDR is 0.0.0.0
Mar 16 17:54:56.159276 OSPF sent Hello 172.14.10.1 -> 224.0.0.5 (ge-0/0/1.0 IFL 69 area
0.0.0.0)
Mar 16 17:54:56.159331 Version 2, length 44, ID 192.168.2.1, area 0.0.0.0
Mar 16 17:54:56.159401 mask 255.255.255.0, hello_ivl 10, opts 0x2, prio 128
Mar 16 17:54:56.159563 dead_ivl 40, DR 172.14.10.1, BDR 0.0.0.0
Mar 16 17:54:56.168108 OSPF DR is 192.168.2.1, BDR is 0.0.0.0

Mar 16 17:54:58.237416 OSPF rcvd Hello 172.14.10.2 -> 224.0.0.5 (ge-0/0/1.0 IFL 69 area
0.0.0.0)
Mar 16 17:54:58.237540 Version 2, length 44, ID 192.168.2.1, area 0.0.0.0
Mar 16 17:54:58.237623 checksum 0x0, authtype 0
Mar 16 17:54:58.237698 mask 255.255.255.0, hello_ivl 10, opts 0x2, prio 128
Mar 16 17:54:58.237751 dead_ivl 40, DR 172.14.10.2, BDR 0.0.0.0
— Exhibit —
Click the Exhibit button.
Looking at the traceoptions output in the exhibit, why are the OSPF routers stuck in Init state?

what would explain interface ge-0/0/3.0 being active in VLANs v1, v2, and v3?

— Exhibit —
{master:0}[edit]
user@switch# show vlans
v1 {
vlan-id 1;
interface {
ge-0/0/1.0;
}
}
v2 {

vlan-id 2;
interface {
ge-0/0/2.0;
}
}
v3 {
vlan-id 3;
interface {
ge-0/0/1.0 {
}
{master:0}[edit]
user@switch# show interfaces ge-0/0/3
unit 0 {
family ethernet-switching {
port-mode trunk;
}
}
{master:0}[edit]
user@switch# run show vlans
Name Tag Interfaces
default
None
v1 1
ge-0/0/1.0*, ge-0/0/3.0*
v2 2

ge-0/0/2.0*, ge-0/0/3.0*
v3 3
ge-0/0/1.0*, ge-0/0/3.0*
— Exhibit —
Click the Exhibit button.
Referring to the exhibit, what would explain interface ge-0/0/3.0 being active in VLANs v1, v2, and
v3?

Which three configuration statements would resolve the problem?

— Exhibit —
{master:0}[edit]
user@switch# show vlans
v200 {
vlan-id 200;
interface {
ge-0/0/7.0;
ge-0/0/8.0;
}
dot1q-tunneling {
customer-vlans [ 11 12 ];
layer2-protocol-tunneling {
all {
drop-threshold 800;
shutdown-threshold 700;
}
}
— Exhibit —
Click the Exhibit button.
Referring to the exhibit, you are attempting to configure L2PT for VLAN v200 but the configuration
will not commit.
Which three configuration statements would resolve the problem? (Choose three.)

Which configuration statement will allow the configuration to commit?

— Exhibit —
[edit]
user@switch# commit
error: Trunk interface <ge-0/0/10.0> can not be member of both dot1q-tunneling enabled vlan
<cust-1>, and a non dot1q-tunneled vlan <v11> when dot1q-tunneling ethernet-type is not
<0x8100>
error: configuration check-out failed
— Exhibit —
Click the Exhibit button.
When you try to commit your 802.1Q tunneling configuration, you receive the error shown in the
exhibit.
Which configuration statement will allow the configuration to commit?

which three commands must be included to resolve the problem?

— Exhibit –

— Exhibit —
Click the Exhibit button.
You are asked to separate the human resources group from the finance group on the company
network even though they share the same VLAN. You consider using PVLANs, and you delegate
the task to a junior engineer who submits the configuration shown in the exhibit to accomplish this
task. After review, you realize that the PVLAN implementation will not work correctly.
Referring to the exhibit, which three commands must be included to resolve the problem? (Choose
three.)

which three commands are required to accomplish this behavior?

— Exhibit –

— Exhibit —
Click the Exhibit button.
You have implemented a firewall-based VLAN filter to map traffic from subnet 192.168.40.0/24 to
a VLAN named vlan_40. However, you have not been successful in getting the traffic mapped
correctly. In addition, all traffic must be passed to the Layer 2 network.
Referring to the exhibit, which three commands are required to accomplish this behavior? (Choose
three.)

What are two reasons for the commit error shown in the exhibit?

— Exhibit —
[edit protocols vstp]
‘vlan all’
Cannot configure VSTP on all VLANs when more than 253 VLANs are configured. Configure vstp
vlan-group along with STP or RSTP to cover all VLANs
[edit protocols]
‘vstp’
Failed to configure vstp on all vlans
error: configuration check-out failed
— Exhibit —
Click the Exhibit button.
What are two reasons for the commit error shown in the exhibit? (Choose two.)


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